Holder for microscope slides



FIG. 1 is a top perspective view of the holder for microscope slides;

FIG. 2 is an end elevational view thereof;

FIG. 3 is a bottom plan view of the side opposite that shown in FIG. 1; and

FIG. 4 is a front elevational view of the holder, looking upwardly at the holder as seen in FIG. 1. 

The ornamental design for a holder for microscope slides, substantially as shown. 